Re: Backups
I once got called to a customer hardware problem. Job: replace the failed tape drive. Got there, confirmed the drive was faulty, swapped it out, set a test backup going. Failed. Tape beyond expiry date, system refuses to use it. Ask for another one. Same. Check their actual backups. Same. They'd expired about a year earlier.
Turns out the backup was scheduled to run at 9pm, so someone was tasked with swapping out the tape before leaving for the day. It went in ok, but instead of being ejected after the backup completed, it was rejected and ejected at 9pm when the backup process started and immediately aborted. When I reported this to their head IT admin, it turns out the emails were being sent to an account of someone who left two years ago and it was highly likely this was happening at every one of their 120 remote offices. Oops!
Let's not even bother with asking if they ever tested their backups :-)